01 - Preheat the oven to 400°F. Line a baking sheet with parchment paper.
02 - Unroll the puff pastry onto the prepared baking sheet. Score a 0.5-inch border around the edges, being careful not to cut all the way through. Prick the pastry inside the border with a fork.
03 - In a bowl, mix crème fraîche, goat cheese, egg, parmesan, lemon zest, salt, and pepper until smooth and well combined.
04 - Spread the cheese mixture evenly over the pastry, keeping within the scored border to ensure proper rising.
05 - Arrange the asparagus spears and spring onions on top of the filling. Brush asparagus lightly with olive oil and season with additional salt and pepper.
06 - Bake in the center of the oven for 22 to 25 minutes, until the pastry is golden and crisp, and the asparagus is tender.
07 - Remove from the oven and let cool for 5 minutes. Garnish with fresh herbs and serve with lemon wedges if desired.